US4714458A - Three stage valve with flexible valve seat - Google Patents
Three stage valve with flexible valve seat Download PDFInfo
- Publication number
- US4714458A US4714458A US06/812,771 US81277185A US4714458A US 4714458 A US4714458 A US 4714458A US 81277185 A US81277185 A US 81277185A US 4714458 A US4714458 A US 4714458A
- Authority
- US
- United States
- Prior art keywords
- valve
- pressure
- valving
- flow
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
- A61M27/006—Cerebrospinal drainage; Accessories therefor, e.g. valves
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
- G05D7/012—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule the sensing element being deformable and acting as a valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7784—Responsive to change in rate of fluid flow
- Y10T137/7792—Movable deflector or choke
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7834—Valve seat or external sleeve moves to open valve
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/812,771 US4714458A (en) | 1985-12-23 | 1985-12-23 | Three stage valve with flexible valve seat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/812,771 US4714458A (en) | 1985-12-23 | 1985-12-23 | Three stage valve with flexible valve seat |
Publications (1)
Publication Number | Publication Date |
---|---|
US4714458A true US4714458A (en) | 1987-12-22 |
Family
ID=25210579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/812,771 Expired - Lifetime US4714458A (en) | 1985-12-23 | 1985-12-23 | Three stage valve with flexible valve seat |
Country Status (1)
Country | Link |
---|---|
US (1) | US4714458A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4769012A (en) * | 1984-11-02 | 1988-09-06 | Codan Medizinische Gerate Gmbh & Co. Kg | Gravity infusion and transfusion flow regulating device |
US4781672A (en) * | 1986-10-21 | 1988-11-01 | Cordis Corporation | Three stage implantable flow control valve with improved valve closure member |
US4858619A (en) * | 1987-06-29 | 1989-08-22 | Toth Marie A | Intracranial pressure monitoring system |
FR2685206A1 (en) * | 1991-12-19 | 1993-06-25 | Cordis Sa | Implantable drainage device for treating hydrocephalus |
US5246031A (en) * | 1990-08-16 | 1993-09-21 | The Coca-Cola Company | Flow-control valve especially for gasified liquids |
US5368556A (en) * | 1992-01-22 | 1994-11-29 | Cordis Corporation | Implantable drainage valve for the treatment of hydrocephalus |
FR2705574A1 (en) * | 1993-05-27 | 1994-12-02 | Cordis Sa | Implantable drainage valve for the treatment of hydrocephalus |
US5437627A (en) * | 1992-09-15 | 1995-08-01 | Cordis Corporation | Implantable valve for the treatment of hydrocephaly |
US5769093A (en) * | 1994-12-09 | 1998-06-23 | Xomed Surgical Products, Inc. | Method of relieving synovial fluid pressure |
US6383159B1 (en) | 1998-11-10 | 2002-05-07 | Eunoe, Inc. | Devices and method for removing cerebrospinal fluids from a patient's CSF space |
US20030004495A1 (en) * | 1996-07-11 | 2003-01-02 | Eunoe, Inc. | Apparatus and methods for volumetric CSF removal |
US20030032915A1 (en) * | 2001-08-09 | 2003-02-13 | Eunoe, Inc. | System and method for treating elevated intracranial pressure |
US20040068221A1 (en) * | 1998-11-10 | 2004-04-08 | Eunoe, Inc. | Methods for the treatment of a normal pressure hydrocephalus |
US20040068201A1 (en) * | 2002-02-15 | 2004-04-08 | Eunoe, Inc. | Systems and methods for flow detection and measurement in CSF shunts |
US6875192B1 (en) | 1998-11-10 | 2005-04-05 | Eunoe, Inc. | Devices and methods for removing cerebrospinal fluids from a patient's CSF space |
US20060089589A1 (en) * | 2004-10-21 | 2006-04-27 | Portnoy Harold D | Resistive shunt valve |
US20080052821A1 (en) * | 2006-09-05 | 2008-03-06 | Farah Morton | Infant bed for co-sleeping |
CN103990188A (en) * | 2013-02-18 | 2014-08-20 | 苏晓静 | Cerebrospinal fluid drainage pressure limiter |
US9050436B2 (en) | 2013-03-14 | 2015-06-09 | DePuy Synthes Products, LLC | Adjustable resistance, gravitationally activated, anti-syphon valve |
US9295821B2 (en) | 2008-07-02 | 2016-03-29 | Christoph Miethke | Cerebrospinal fluid drainage |
US20190001081A1 (en) * | 2015-12-21 | 2019-01-03 | 3M Innovative Properties Company | Flow governors for use in medicinal inhalers |
US10183143B2 (en) | 2013-03-15 | 2019-01-22 | Bitol Designs, Llc | Occlusion resistant catheter and method of use |
WO2023009133A1 (en) * | 2021-07-30 | 2023-02-02 | Medtronic Ps Medical, Inc. | System for valve control |
US11701503B2 (en) | 2020-07-31 | 2023-07-18 | Medtronic Ps Medical, Inc. | System and method for valve control |
Citations (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US28722A (en) * | 1860-06-12 | whitaker | ||
US79436A (en) * | 1868-06-30 | Improvement in steam safety-valves | ||
NL68509C (en) * | 1900-01-01 | |||
US1139455A (en) * | 1912-10-10 | 1915-05-11 | Iceless Machine Company | Check-valve. |
US1159214A (en) * | 1914-02-24 | 1915-11-02 | Joseph Jean Marie Gueux | Apparatus for controlling the flow of fluids through conduits. |
US1199152A (en) * | 1916-01-14 | 1916-09-26 | John J Logan | Automatic flow-regulating valve. |
US1468434A (en) * | 1921-04-06 | 1923-09-18 | Zander John | Valve device |
US2207382A (en) * | 1939-01-30 | 1940-07-09 | Reconstruction Finance Corp | Pressure relief valve |
US2290151A (en) * | 1938-01-06 | 1942-07-21 | Henry J De N Mccollum | Automobile heater |
US2684081A (en) * | 1950-11-02 | 1954-07-20 | Dole Valve Co | Fluid flow control valve |
US2960109A (en) * | 1957-01-07 | 1960-11-15 | Gen Controls Co | Flow regulator |
US2969066A (en) * | 1956-10-02 | 1961-01-24 | Holter Company | Device for draining ventricular fluid in cases of hydrocephalus |
US3109429A (en) * | 1962-01-30 | 1963-11-05 | Schwartz Samuel | Ventriculo-venous shunt device for treatment of hydrocephalus |
US3233610A (en) * | 1962-05-28 | 1966-02-08 | Wade Stanley Charles | Hydrocephalus shunt pump |
US3270771A (en) * | 1963-06-11 | 1966-09-06 | Robertshaw Controls Co | Resilient disc check valve |
US3288142A (en) * | 1964-04-27 | 1966-11-29 | Hakim Salomon | Hydrocephalus shunt with spring biased one-way valves |
US3308798A (en) * | 1965-05-05 | 1967-03-14 | Kenneth M Snider | Metering valve for crankcase ventilation systems |
US3492996A (en) * | 1966-02-09 | 1970-02-03 | Dow Corning | Ventriculo-atrial shunt |
US3566875A (en) * | 1969-05-20 | 1971-03-02 | Richard K Stoehr | Device for draining cerebrospinal fluid |
US3601128A (en) * | 1968-12-26 | 1971-08-24 | Salomon Hakim | Ventriculoatrial shunt accumulator |
US3654932A (en) * | 1969-11-26 | 1972-04-11 | John B Newkirk | Surgical drain for shunting fluid |
US3674050A (en) * | 1969-07-15 | 1972-07-04 | Francois Kuffer | Check valve for drainage of fluid into the vascular system or into a body cavity for the treatment of hydrocephalus internus and externus |
US3693929A (en) * | 1971-01-18 | 1972-09-26 | Sidney L Martin | Hanger device useful in forming concrete structural slabs |
US3756243A (en) * | 1971-09-23 | 1973-09-04 | R Schulte | Flow control system for physiological drainage |
US3768508A (en) * | 1972-01-24 | 1973-10-30 | R Schulte | Valve for controllable release of entrapped body fluids |
US3769982A (en) * | 1971-09-24 | 1973-11-06 | R Schulte | Physiological drainage system with closure means responsive to downstream suction |
US3782410A (en) * | 1972-12-26 | 1974-01-01 | T Steuby | Valve |
US3804113A (en) * | 1971-06-21 | 1974-04-16 | Alfa Romeo Spa | Automatic non-return valve |
US3827439A (en) * | 1972-10-30 | 1974-08-06 | Heyer Schulte Corp | Plug valve for physiological shunt systems |
US3886948A (en) * | 1972-08-14 | 1975-06-03 | Hakim Co Ltd | Ventricular shunt having a variable pressure valve |
US3889687A (en) * | 1974-01-31 | 1975-06-17 | Donald L Harris | Shunt system for the transport of cerebrospinal fluid |
US3901245A (en) * | 1973-03-15 | 1975-08-26 | Bio Medical Res Ltd | Bio-medical pressure control device |
US3924635A (en) * | 1972-08-14 | 1975-12-09 | Salomon Hakim | Ventricular shunt having a variable pressure valve |
US3970105A (en) * | 1975-06-16 | 1976-07-20 | Continental Can Company, Inc. | Toroidal pressure regulator |
US3985140A (en) * | 1975-06-30 | 1976-10-12 | Cordis Corporation | Dual pressure valve for use in ventricular shunt system |
US3991768A (en) * | 1973-03-16 | 1976-11-16 | Portnoy Harold D | Shunt system resistant to overdrainage and siphoning and valve therefor |
US3999553A (en) * | 1973-03-15 | 1976-12-28 | Bio-Medical Research, Ltd. | Bio-medical pressure control device |
US4103689A (en) * | 1976-12-13 | 1978-08-01 | Stephen Beecher Leighton | Tissue pressure reference for cerebrospinal fluid shunting device |
US4106510A (en) * | 1976-11-26 | 1978-08-15 | Hakim Company Limited | Servo valve |
US4156422A (en) * | 1976-06-11 | 1979-05-29 | Messerschmitt-Bolkow-Blohm Gmbh | Apparatus for treating hydrocephaly |
US4167952A (en) * | 1978-03-09 | 1979-09-18 | Parker-Hannifin Corporation | Control device for prosthetic urinary sphincter valve |
US4215695A (en) * | 1978-02-22 | 1980-08-05 | Medical Devices, Inc. | Fluid draining system |
US4246930A (en) * | 1979-03-08 | 1981-01-27 | Eaton Corporation | Relief valve |
US4332255A (en) * | 1979-01-10 | 1982-06-01 | Hakim Company Limited | Shunt valve |
US4340038A (en) * | 1980-12-15 | 1982-07-20 | Pacesetter Systems, Inc. | Magnetic field concentration means and method for an implanted device |
US4437493A (en) * | 1981-08-19 | 1984-03-20 | Kuniteru Okuda | Constant flow control valve |
US4443214A (en) * | 1981-03-18 | 1984-04-17 | Society Dite: Sophysa | Valve for the treatment of hydrocephalus |
US4451128A (en) * | 1981-07-07 | 1984-05-29 | Frank Fruengel | Method of and a device for adjusting a high-speed photographic arrangement |
US4452423A (en) * | 1982-08-03 | 1984-06-05 | Martin Marietta Corporation | Magnetically actuated valve |
US4627832A (en) * | 1984-05-08 | 1986-12-09 | Cordis Corporation | Three stage intracranial pressure relief valve having single-piece valve stem |
-
1985
- 1985-12-23 US US06/812,771 patent/US4714458A/en not_active Expired - Lifetime
Patent Citations (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US28722A (en) * | 1860-06-12 | whitaker | ||
US79436A (en) * | 1868-06-30 | Improvement in steam safety-valves | ||
NL68509C (en) * | 1900-01-01 | |||
US1139455A (en) * | 1912-10-10 | 1915-05-11 | Iceless Machine Company | Check-valve. |
US1159214A (en) * | 1914-02-24 | 1915-11-02 | Joseph Jean Marie Gueux | Apparatus for controlling the flow of fluids through conduits. |
US1199152A (en) * | 1916-01-14 | 1916-09-26 | John J Logan | Automatic flow-regulating valve. |
US1468434A (en) * | 1921-04-06 | 1923-09-18 | Zander John | Valve device |
US2290151A (en) * | 1938-01-06 | 1942-07-21 | Henry J De N Mccollum | Automobile heater |
US2207382A (en) * | 1939-01-30 | 1940-07-09 | Reconstruction Finance Corp | Pressure relief valve |
US2684081A (en) * | 1950-11-02 | 1954-07-20 | Dole Valve Co | Fluid flow control valve |
US2969066A (en) * | 1956-10-02 | 1961-01-24 | Holter Company | Device for draining ventricular fluid in cases of hydrocephalus |
US2960109A (en) * | 1957-01-07 | 1960-11-15 | Gen Controls Co | Flow regulator |
US3109429A (en) * | 1962-01-30 | 1963-11-05 | Schwartz Samuel | Ventriculo-venous shunt device for treatment of hydrocephalus |
US3233610A (en) * | 1962-05-28 | 1966-02-08 | Wade Stanley Charles | Hydrocephalus shunt pump |
US3270771A (en) * | 1963-06-11 | 1966-09-06 | Robertshaw Controls Co | Resilient disc check valve |
US3288142A (en) * | 1964-04-27 | 1966-11-29 | Hakim Salomon | Hydrocephalus shunt with spring biased one-way valves |
US3308798A (en) * | 1965-05-05 | 1967-03-14 | Kenneth M Snider | Metering valve for crankcase ventilation systems |
US3492996A (en) * | 1966-02-09 | 1970-02-03 | Dow Corning | Ventriculo-atrial shunt |
US3601128A (en) * | 1968-12-26 | 1971-08-24 | Salomon Hakim | Ventriculoatrial shunt accumulator |
US3566875A (en) * | 1969-05-20 | 1971-03-02 | Richard K Stoehr | Device for draining cerebrospinal fluid |
US3674050A (en) * | 1969-07-15 | 1972-07-04 | Francois Kuffer | Check valve for drainage of fluid into the vascular system or into a body cavity for the treatment of hydrocephalus internus and externus |
US3654932A (en) * | 1969-11-26 | 1972-04-11 | John B Newkirk | Surgical drain for shunting fluid |
US3693929A (en) * | 1971-01-18 | 1972-09-26 | Sidney L Martin | Hanger device useful in forming concrete structural slabs |
US3804113A (en) * | 1971-06-21 | 1974-04-16 | Alfa Romeo Spa | Automatic non-return valve |
US3756243A (en) * | 1971-09-23 | 1973-09-04 | R Schulte | Flow control system for physiological drainage |
US3769982A (en) * | 1971-09-24 | 1973-11-06 | R Schulte | Physiological drainage system with closure means responsive to downstream suction |
US3768508A (en) * | 1972-01-24 | 1973-10-30 | R Schulte | Valve for controllable release of entrapped body fluids |
US3886948A (en) * | 1972-08-14 | 1975-06-03 | Hakim Co Ltd | Ventricular shunt having a variable pressure valve |
US3924635A (en) * | 1972-08-14 | 1975-12-09 | Salomon Hakim | Ventricular shunt having a variable pressure valve |
US3827439A (en) * | 1972-10-30 | 1974-08-06 | Heyer Schulte Corp | Plug valve for physiological shunt systems |
US3782410A (en) * | 1972-12-26 | 1974-01-01 | T Steuby | Valve |
US3901245A (en) * | 1973-03-15 | 1975-08-26 | Bio Medical Res Ltd | Bio-medical pressure control device |
US3999553A (en) * | 1973-03-15 | 1976-12-28 | Bio-Medical Research, Ltd. | Bio-medical pressure control device |
US3991768A (en) * | 1973-03-16 | 1976-11-16 | Portnoy Harold D | Shunt system resistant to overdrainage and siphoning and valve therefor |
US3889687A (en) * | 1974-01-31 | 1975-06-17 | Donald L Harris | Shunt system for the transport of cerebrospinal fluid |
US3970105A (en) * | 1975-06-16 | 1976-07-20 | Continental Can Company, Inc. | Toroidal pressure regulator |
US3985140A (en) * | 1975-06-30 | 1976-10-12 | Cordis Corporation | Dual pressure valve for use in ventricular shunt system |
US4156422A (en) * | 1976-06-11 | 1979-05-29 | Messerschmitt-Bolkow-Blohm Gmbh | Apparatus for treating hydrocephaly |
US4106510A (en) * | 1976-11-26 | 1978-08-15 | Hakim Company Limited | Servo valve |
US4103689A (en) * | 1976-12-13 | 1978-08-01 | Stephen Beecher Leighton | Tissue pressure reference for cerebrospinal fluid shunting device |
US4215695A (en) * | 1978-02-22 | 1980-08-05 | Medical Devices, Inc. | Fluid draining system |
US4167952A (en) * | 1978-03-09 | 1979-09-18 | Parker-Hannifin Corporation | Control device for prosthetic urinary sphincter valve |
US4332255A (en) * | 1979-01-10 | 1982-06-01 | Hakim Company Limited | Shunt valve |
US4246930A (en) * | 1979-03-08 | 1981-01-27 | Eaton Corporation | Relief valve |
US4340038A (en) * | 1980-12-15 | 1982-07-20 | Pacesetter Systems, Inc. | Magnetic field concentration means and method for an implanted device |
US4443214A (en) * | 1981-03-18 | 1984-04-17 | Society Dite: Sophysa | Valve for the treatment of hydrocephalus |
US4451128A (en) * | 1981-07-07 | 1984-05-29 | Frank Fruengel | Method of and a device for adjusting a high-speed photographic arrangement |
US4437493A (en) * | 1981-08-19 | 1984-03-20 | Kuniteru Okuda | Constant flow control valve |
US4452423A (en) * | 1982-08-03 | 1984-06-05 | Martin Marietta Corporation | Magnetically actuated valve |
US4627832A (en) * | 1984-05-08 | 1986-12-09 | Cordis Corporation | Three stage intracranial pressure relief valve having single-piece valve stem |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4769012A (en) * | 1984-11-02 | 1988-09-06 | Codan Medizinische Gerate Gmbh & Co. Kg | Gravity infusion and transfusion flow regulating device |
US4781672A (en) * | 1986-10-21 | 1988-11-01 | Cordis Corporation | Three stage implantable flow control valve with improved valve closure member |
US4858619A (en) * | 1987-06-29 | 1989-08-22 | Toth Marie A | Intracranial pressure monitoring system |
US5246031A (en) * | 1990-08-16 | 1993-09-21 | The Coca-Cola Company | Flow-control valve especially for gasified liquids |
EP0617974A1 (en) * | 1991-12-19 | 1994-10-05 | Cordis S.A. | Implantable drainage valve for the treatment of hydrocephalus |
US5336166A (en) * | 1991-12-19 | 1994-08-09 | Cordis Corporation | Three stage implantable valve |
FR2685206A1 (en) * | 1991-12-19 | 1993-06-25 | Cordis Sa | Implantable drainage device for treating hydrocephalus |
US5368556A (en) * | 1992-01-22 | 1994-11-29 | Cordis Corporation | Implantable drainage valve for the treatment of hydrocephalus |
US5437627A (en) * | 1992-09-15 | 1995-08-01 | Cordis Corporation | Implantable valve for the treatment of hydrocephaly |
FR2705574A1 (en) * | 1993-05-27 | 1994-12-02 | Cordis Sa | Implantable drainage valve for the treatment of hydrocephalus |
US5769093A (en) * | 1994-12-09 | 1998-06-23 | Xomed Surgical Products, Inc. | Method of relieving synovial fluid pressure |
US5807303A (en) * | 1994-12-09 | 1998-09-15 | Xomed Surgical Products, Inc. | Valve assembly and device for relieving synovial fluid pressure |
US20030004495A1 (en) * | 1996-07-11 | 2003-01-02 | Eunoe, Inc. | Apparatus and methods for volumetric CSF removal |
US20040068221A1 (en) * | 1998-11-10 | 2004-04-08 | Eunoe, Inc. | Methods for the treatment of a normal pressure hydrocephalus |
US7189221B2 (en) | 1998-11-10 | 2007-03-13 | Integra Life Sciences Corporation | Methods for the treatment of a normal pressure hydrocephalus |
US6575928B2 (en) | 1998-11-10 | 2003-06-10 | Eunoe, Inc. | Devices and methods for removing cerebrospinal fluids from a patient's CSF space |
US6383159B1 (en) | 1998-11-10 | 2002-05-07 | Eunoe, Inc. | Devices and method for removing cerebrospinal fluids from a patient's CSF space |
US6875192B1 (en) | 1998-11-10 | 2005-04-05 | Eunoe, Inc. | Devices and methods for removing cerebrospinal fluids from a patient's CSF space |
US7025739B2 (en) | 2001-08-09 | 2006-04-11 | Integra Lifesciences Corporation | System and method for treating elevated intracranial pressure |
US20030032915A1 (en) * | 2001-08-09 | 2003-02-13 | Eunoe, Inc. | System and method for treating elevated intracranial pressure |
US20040068201A1 (en) * | 2002-02-15 | 2004-04-08 | Eunoe, Inc. | Systems and methods for flow detection and measurement in CSF shunts |
US20060089589A1 (en) * | 2004-10-21 | 2006-04-27 | Portnoy Harold D | Resistive shunt valve |
US20080052821A1 (en) * | 2006-09-05 | 2008-03-06 | Farah Morton | Infant bed for co-sleeping |
US9295821B2 (en) | 2008-07-02 | 2016-03-29 | Christoph Miethke | Cerebrospinal fluid drainage |
CN103990188A (en) * | 2013-02-18 | 2014-08-20 | 苏晓静 | Cerebrospinal fluid drainage pressure limiter |
CN103990188B8 (en) * | 2013-02-18 | 2017-02-08 | 中国人民解放军总医院 | Cerebrospinal fluid drainage pressure limiter |
CN103990188B (en) * | 2013-02-18 | 2016-12-28 | 中国人民解放解放军总医院 | Drainage of cerebrospinal fluid voltage limiter |
US9050436B2 (en) | 2013-03-14 | 2015-06-09 | DePuy Synthes Products, LLC | Adjustable resistance, gravitationally activated, anti-syphon valve |
US9731102B2 (en) | 2013-03-14 | 2017-08-15 | DePuy Synthes Products, Inc. | Adjustable resistance, gravitationally activated, anti-siphon valve |
US10183143B2 (en) | 2013-03-15 | 2019-01-22 | Bitol Designs, Llc | Occlusion resistant catheter and method of use |
US20190001081A1 (en) * | 2015-12-21 | 2019-01-03 | 3M Innovative Properties Company | Flow governors for use in medicinal inhalers |
US11376378B2 (en) * | 2015-12-21 | 2022-07-05 | Kindeva Drug Delivery, L.P. | Flow governors for use in medicinal inhalers |
US11701503B2 (en) | 2020-07-31 | 2023-07-18 | Medtronic Ps Medical, Inc. | System and method for valve control |
WO2023009133A1 (en) * | 2021-07-30 | 2023-02-02 | Medtronic Ps Medical, Inc. | System for valve control |
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